Hardware Difference between Mi Band 3 "Mili_hankou" Global Version and "Mili_chongqing" Chinese NFC Version
(Teardown, Disassembly)
(Teardown, Disassembly)
Other hardware comparison: HW Difference - MB3 "Mili_wuhan" Global vs. Chinese Version (Teardown, Disassembly)
The evaluation of the parameters of both versions is subjective and informative only.
Firmware uses the same firmware for both versions.
Mi band 3 Global Version (Mili_hankou)
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* Processor: Dialog DA14681, is the same for both versions.
* Memory: Winbond, Serial Flash W25Q32 32Mbit (4MB). The size and type of flash is the same for both versions, only another manufacturer.
* Hardware version is: v0.23.18.49 (The PCB layout is the same as that of Mili_wuhan Chinese / Global Version. The mounting of the SMD component on the PCB (assembly variant on the PCB) is the same as the Mili_wuhan Chinese Version).
* Target sales region: Global Version
* Default language is English.
* Code Name of HW: Mili_hankou
* The OLED display:
- has a cold-white OLED display, compared with the Mili_chongqing China NFC version. The display shade is similar to the Mili_wuhan Global Version.
- touch screen sensitivity is the same for both versions.
* Photoelectric heart rate sensor:
- It contains a different type of the sensor compared with the Mili_chongqing China NFC version. This heart rate sensor is used in Mi Band 4.
- Auxiliary sensor LEDs allow you to change the light intensity and thus save battery life.
- Measurement time for heart rate measurement and accuracy range of the measured value is the same for both versions.
* Counting steps and sensitivity of the acceleration sensor is the same for both versions.
* Vibration strength have the same intensity for both versions.
* The menu item "About" displays more information and logos EAC, CE and other, compared with the Mili_chongqing China NFC version.
* Operating time of the battery 110 mA/h battery is better than the Mili_chongqing China NFC version.
* Cover design, charging cradle and strap is the same for both versions.
* Bluetooth parameters (distance, signal strength) are the same for both versions.
Mi band 3 Chinese NFC Version (Mili_chongqing)
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* Processor: Dialog DA14681, is the same for both versions.
* Memory: GigaDevice Semic., Serial Flash GD25LQ32 32Mbit (4MB). The size and type of flash is the same for both versions, only another manufacturer.
* Hardware version is: v0.20.131.33 (The PCB layout is unique to this version (compared to Mili_wuhan, Mili_hankou), also the location of the SMD component on the PCB. The NFC antenna is located in the capacitive sensor at the bottom on the transparent cover of the OLED display.)
* Target sales region: Chinese Version
* Default language is Chinese.
* Code Name of HW: Mili_chongqing
* The OLED display:
- has a warm-white OLED display, compared with Mili_hankou. The display shade is similar to the Mili_wuhan Chinese Version.
- touch screen sensitivity is the same for both versions.
* Photoelectric heart rate sensor:
- It contains a different type of the sensor compared with Mili_hankou.
- Type of the sensor is the same as Mili_wuhan Chinese Version.
- Measurement time for heart rate measurement and accuracy range of the measured value is the same for both versions.
* Counting steps and sensitivity of the acceleration sensor is the same for both versions.
* Vibration strength have the same intensity for both versions.
* The menu item "About" displays only part number.
* Operating time of the battery 110mA/h is the same as Mili_wuhan Chinese Version, but better than Mili_wuhan Global Version.
* Cover design, charging cradle and strap is the same for both versions.
* Bluetooth parameters (distance, signal strength) are the same for both versions.
On the left are the "Mili_hankou" Global Version / On the right are the "Mili_chongqing" Chinese NFC Version
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